10 Best Stereo Equalizers 2025 in the United States

The ART EQ355 Dual Channel 31-Band Equalizer is a feature-rich stereo equalizer that offers a range of options for sound customization. One of its major strengths is the dual-channel 31-band configuration, which provides detailed control over the frequency bands, allowing for precise audio adjustments. The constant Q circuitry ensures consistent bandwidth across all frequencies, which is beneficial for maintaining audio clarity.

Additionally, the selectable boost/cut range of 6dB or 12dB offers flexibility in how much you can adjust the sound levels. This equalizer also includes high-pass and low-pass filters, which help in removing unwanted frequencies and enhancing the sound quality. The inclusion of balanced XLR and 1/4 in connectors offers versatile connectivity options.

The dbx 530 Compact, Professional Parametric EQ is a versatile and powerful tool for audio enthusiasts and professionals. One of the key strengths of this product is its 3-band parametric equalizer based on the classic dbx 905, which is known for its high-quality sound shaping abilities. Each band offers selectable bell or shelf type filters on low and high frequency bands, providing flexibility in adjusting the sound to your preference.

Additionally, the adjustable Q on each band allows for precise control over the bandwidth of the frequency adjustments, giving users a high degree of customization. The compact size (9 x 2 x 6.6 inches) and light weight (1 pound) make it an excellent choice for those needing a space-saving solution without sacrificing performance.

Some potential drawbacks include the lack of detailed information on the signal-to-noise ratio (SNR) and the input and output connections, which are crucial for ensuring high-quality sound and compatibility with other audio equipment. Additionally, it is not specified if the unit includes a bypass function, which can be important for easily comparing the equalized sound with the original signal.

The dbx 231s Dual Channel 31-Band Equalizer is a solid choice for musicians, sound engineers, and audio enthusiasts looking to enhance their sound control in live or studio settings. With its dual 31-band constant Q frequency bands, it provides detailed adjustments for a wide range of sound frequencies, allowing users to fine-tune their audio output effectively. The switchable boost/cut ranges of 6 or 12 dB give flexibility for making significant changes or subtle tweaks in sound, which is a great feature for those seeking versatility in their setups.

One of the standout features is the front panel bypass switch, which allows for quick comparisons between the processed and unprocessed signals. This is particularly useful during live performances where setting adjustments need to be made rapidly. The 12 dB input gain range provides ample room for various input levels, making it compatible with different audio sources.

While the 4-segment LED ladders for monitoring output levels are helpful, some users might find that they need more detailed visual feedback for fine-tuning. The weight of 7.9 pounds and dimensions can also make it less portable compared to smaller models, which might be a consideration for users who frequently move their equipment. The input and output connections via ¼” TRS and XLR are standard in the industry, ensuring good compatibility with most audio gear. Beginners might need to familiarize themselves with these connections if they are new to audio mixing.

The dbx 231s serves well for those who want a reliable and effective equalizer with a range of features. It may be best suited for those with some experience in audio equipment, as the range of options could be overwhelming for complete novices.